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Article Dans Une Revue IEEE Transactions on Industry Applications Année : 2020

Proposition for Improving the Design of Motor Windings for Low-Pressure Environment

Résumé

A new approach is proposed for designing coils free of partial discharges (PDs) for compact machines operating at high altitudes. The proposed method consists in using an enameled wire made with a thin additional resistive layer on the outer surface, which reduces strongly the electrical field in the voids between the wires of random coils. With such a wire, PDs occur only in specific zones situated near the wire connections and a local reinforcement of the insulation can increase strongly the partial discharge inception voltage (PDIV). The paper proposes a theoretical method for determining the properties of the resistive layer. The local reinforcement of the insulation is analysed with an electrostatic simulation and Paschen's law. Measurements confirm the effectiveness of the proposed method.
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Dates et versions

hal-04278020 , version 1 (09-11-2023)

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Citer

Daniel Roger, Sonia Ait-Amar, Ewa Napieralska-Juszczak, Piotr Napieralski. Proposition for Improving the Design of Motor Windings for Low-Pressure Environment. IEEE Transactions on Industry Applications, 2020, 56 (3), pp.2491-2499. ⟨10.1109/tia.2020.2973944⟩. ⟨hal-04278020⟩

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